Update Ruby version on Travis. See travis-ci/travis-rubies#19 for det…

…ails
poise · Jul 5, 2016 · 8b903d6 · 8b903d6
1 parent be14015
commit 8b903d6
Showing 1 changed file with 1 addition and 2 deletions.
diff --git a/.travis.yml b/.travis.yml
@@ -6,8 +6,7 @@ addons:
     packages:
     - libgecode-dev
 rvm:
-- "2.1"
-- "2.2"
+- 2.3.1
 gemfile:
 - gemfiles/default.gemfile
 - gemfiles/master.gemfile